Disconnect the sprayer boom hose from Y splitter, and dd another Y splitter, then reconnect the boom hose to one side of the added splitter. Add a washing machine supply (female/female) to the other side of new Y. now attach garden hose to washing machine line and turn on the water faucet with pump running. This will charge and/or backwash the pump. Once pressure is achieved, turn on the boom and check for fluid movement, then turn the washer supply valve on Y to off, and disconnect. The pump should be primed and be cycling fluid from tank and back to tank. Ready to shift to boom for use. I leave the washer hose and assembly zip-tied onto sprayer for easy future priming, and pump wash between uses.
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